Ignition device.



T. HUBERT. IGNITION DEVICE.

' APPLICATION FILED MAR. 23, 1909.

1,064,329, Patented June 10, 1913.

3 SHEETS-SHEET 1.

T. HUBERT.

IGNITION DEVICE.

APPLICATION FILED MAR. 23, 1909.

1,064,329, Patented June 10,1913.

3 SHEETS-SHEET 2.

T. HUBERT.

IGNITION DEVICE.

APPLICATION FILED MAR. 23, 1909.

1 0 4 329 Patented June 10, 1913.

3 SHEETS-SHEET 3.

wi'bl w o-oco 5 14 00 wfo-z improvements UNITED s'riirns r'ATnn THEODOREHUBER'I, OF CRANFORD, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGN-- MENTS, TOAMERICAN CIRCULAR LOOM COMPANY, OF BOSTON, MASSACHUSETTS,

A CORPORATION OF MAINE.

Specification of Letters Patent.

renrrron neuron.

Patented June fill), 1913,

Application filed March 23, 1909. Serial No. 485,252.

To all whom it may concern:

Be it known that I, THEODORE HUBERT, a citizen of the United States, andresident of Cranford, in the county of Union and State of New Jersey,have invented certain new and useful Improvements in Ignition Devices,of which the following is a specification. 4

My invention has particular reference to in means for producing sparksfor internalcombustion-engines, and relates to improvements in magnetosor generators of the low tension type used in connection with one ormore transformers or induction coils to produce the jump spark at theignition plugs, whereby the usual or well-known distributors maybedispensed with, the efiects of such devices being produced by means ofmy improved magneto.

My invention comprises the novel details of improvement and combinationsof parts, designed to carry out the above named and other objects,thatwill be more fully hereinafter set forth and then pointed out in theclaims.

Reference is to be had to the accompanying drawings forming part hereof,wherein,

Figural 15 a front view of a magneto or generator embodying myimprovements, Fig. 2 is a simllar view of part thereof, parts beingremoved, Fig. 3 is a front view corresponding to Figs. 1 and 2, partsbeing removed to illustrate the arrangement of con tacts shown partly insaid figures, Fig. his

a cross section taken substantially on thev plane of the line l, 4, inFig. 1, Fig. 5 is a partly vertical section substantially on the planeof the irregular line 5, 5, in Fig. 1, parts being in elevation andparts being broken away, Fig. 6 is an inside face View of the insulatingplate 15, and Fig. 7 is a diagrammatic view illustrating circuits anddevices employed in'an ignition system embodying my improvements.

Similar numerals of reference indicate corresponding parts in theseveral views.

one end with a head 4: of the armature, and

at the opposite end with a conductor 5 shown extending centrally throughthe shaft 3 of the armature and insulated therefrom by insulation 6 (seeFig. 4), conductor 5 being shown insulated from the armature head 4* bythe insulation 7. .The conductor rod 5 at the outer end is provided witha metallic head 5 insulated from shaft 3- by insulation 8. The shaftpart 3 of the armature is adapted for connection with a drive shaft, aswith the crank shaft of an internal combustion engine. The rotarycontact 5* is maintained properly in the primary circuit, as by means ofa contact 9 shown carried by a spring 10 supported by a cap 11 incircuit with a post 12 which is in connection with a post 13 by aconductor as 14:, in the circuit of which conductor is a suitable switch15 (Fig. 7) for controlling the primary magneto circuit. The cap 11 maybe of metal, or if of insulation then post 12 may be directly connectedto spring 10. -By the arrangement shown contacts 5 and 9 are held inpermanent engagement so that contact 5 may rotatein circuit with contact9. Cap 11 is shown carried byan insulating disk 15, being detachablyheld thereon by posts 16 extending from said disk through cap 11 andprovided with re taining nuts 17. Insulating disk 15 is shown journaledcentrally to rock upon a hub 1 projecting from frame 1, and held inrotative position upon hub 1 by a suitable spring G shown secured byscrews to hub 1 the outer ends of said spring bearing against the outerface of disk'15. From post. 13

a conductor 18 leads to a'terminal oft-he primary winding '19 of atransformer or induction coil A, whose opposite terminal connects bywire 20 with apost 21 from which a conductor or spring 22- leads to a"plate 23 shown secured to the inner *suritace of insulating disk 15,plate -23 thus being in permanent but adjustable or shifting' contactwith conductor or spring 22. @n the opposite face of disk 15 is a baseor plate 24- in circuit with plate 23, as by con necting wire 24:passing through disk 15,

base 24 being secured in position as by screws near its ends. Secured,to and ex tending from base at is a spring or contact 25 adaptedtoengage' a rotary contact 26 secured on and in circuit with shaft 3 of105 ,the armature. (lent-act is not completely I circular, at least forits operative part, but portion of its is divided or broken fora area so.as to make and break circuit at the proper time with spring orcontact25, and by preference I provide a suitable piece of insulation 27 tofill the open space of contact 26, against which insulation the springor contact 25 may bear. The surface of parts 26 and 27 against whichspring 25 bears is made flush, so that when the primary magneto circuitis broken spring 25 may ride on insulation 27 to preserve its properposition with respect to rotary contact 26. It will thus be seen thatthe rimary circuit is from the armature win ing through parts 5, 5 and9, spring 10, cap 11, post 12, conductor 14, switch15, conductor 18,primary 19, conductors 20 and 22, to plate 23, thence through base 24,spring or contact 25, rotary contact 26, shaft 3*, and

the armature metal through head 4 to the opposite terminal of thearmature winding.

In order that the discharge of the magneto circuit through the primarycoil 19 shall occur only at the desired time, as for instance, after thepeak of the current wave of the primary circuit has been reached andpassed and before such wave has terminated, I provide a short circuitfor the armature winding and the transformer primary 19 which isarranged as follows: From post 13 a conductor, such as 30, is in circuitwith a contact '31 carried by disk 15 adapted to make and break circuitwith a movable contact 32 operated by the armature shaft, the

contact 32 being in circuit with contact or spring 25. I have shown anarm 33 secured upon shaft 3 adapted during rotation to intermittentlyoperate contact 32. To these ends I have shown a rock arm 34, pivota-llysupported upon a post 35 secured to base 24, a spring 36 normallytending to push arm 34 toward and against a stop 37.

' is completed through contacts 25, 26, shaft Contact 32 is carried by aspring 38 secured at one end to arm 34, and at its opposite end saidspring works against a stop 34 on said arm to limit the outward movementof the spring and permit its inward movement toward arm 34 whenengagement is made between contacts 32 and 31.'

In the construction shown in Figs. 1 to 6, in order to provide in theshort circuit for the shifting of disk 15, the following arrangement isshown :The contact 31 is carried by a metal support or post 31 securedon disk 15, and a conductor 30 leads through a hole in disk 15 (beingshown located in a groove 15 in said disk, Fig. '6), and is connected toa metal plate 30 secured on the inner face of disk 15 (see Fig. 6), saidplate being in shifting contact with conductor 30 made in the form ofaspring. In the arrangement shown the short circuit 3", the armaturemetal, winding 3*, conductor 5, head 5, parts 9, 10, 11, 12, 14, 13,spring 30, plate 30*, wire 30, and base 31*, 31,32, 38, 34, and base 24back to spring 25, and the transformer 19 is short circuited asfollows:-from post 13 through 18, 19, 20,

21, 22, 23, 24c, 34, as, s2, s1, 31*, and 30 30 and 30 back to 13.

Arm 33 may be insulated from shaft 3 in engagement preferably justbefore, dur-,

ing and after contacts 31 and 32 are in engagement, so that circuitthrough 25,26 for.

primary 19 will be maintained to receive the primary discharge from thearmature after arm 33 releases arm 34. and the short circuit is thusbroken at contacts 31, 32. To this end I have shown arm 34 provided witha centric with the axis of shaft 3 whereby roller 33 will engagethesurface 34 at the appropriate time to close the short circuit throughcontacts 31, 32, hold the short circuit closed for a definite period,and then breakvthe short circuitas roller 33" leaves,

surface 34 while contacts 25 and 26 remain in engagement.

To destroy the sparks that may be produced in'the short'circuit at thebreak of contacts 31, 321 provide a condenser. 40, which may berelatively small, bridged across contacts 31, 32, which may be arrangedas follows: One terminal of the condenser is shown in circuit: with post21 and contact'22, as by being connected with conductor 20 by a spur41,and the opposite terminal of the condenser is shown connected 'with post13. bywire 42 (see Fig. 7), the

circuit for the condenser thus being from bearing surface 34 of suitablelength con post 21 through 41, 40, 42, 13,30,30 30 31 31, 32, 38,134, topost 21. p p

The secondary winding 19 of the transformer connects with one or morespark plugs or the like a a of an internal combustion engine.Thearrangement so far described is such that two plugs a, a may beoperated directly and at the proper time (without any separate timer ordistributer) 35*, 24 23 and contact 22' for t'wo cylinders of an engineby connect- 7 ing the conductors b, b of the terminals.

of the secondary winding 19" with the plugs a a respectively. In suchcase '-the circuit will be completed through the engine frame and sparkswill jump simultaneously in both plugs when transformer winding 19 isenerminal of which connects by wire 20 with ose-see gized, the sparks inone cylinder serving to explode a compressed charge therein, whilesparks simultaneously passing in the other cylinder will not benecessary at that moment but will serve to aid in' keeping the sparkpoints clean, and then when the charge is compressed in the last namedcylinder the sparks at its plug will ignite the charge while the sparkssimultaneously made in the exhausted cylinder will be negative asbeforestated. As the armature, in the example described, is connecteddirectly to the crank shaft of the engine it will be understood thateach revolution of arm 33 and contact 26 will produce sparks at theplugs. If the magneto were to be used in a single cylinder engine thenone of the conductors Z) or 6 would lead to a spark plug and the othercorresponding conductor would lead to ground at the engine. I

ln the diagram illustrated in Fig. 7 Thave provided for supplying fourcylinders of an engine with current for two revolutions of the armature,the arrangements before described being substantially the same onopposite sides of the armature axis, that is to say from post 21conductor 22*"- leads to plate 23 secured on disk 15, on the sideopposite plate 23-, connected by a wire 24* with base 24 on disk 15,said-base carrying spring 38 and contact 32 spring 25* secured to base24* engaging contact26 as required. The conductor 18 leading from post13 also connects with one-terminal of the primary winding 19 of a secondtransformer or induction coil B, (Fig. 7) the opposite terpost 21*, theprimary circuit thus being arranged similar to that previouslydescribed, but including the primary winding 19*. The spark plugs a a?are connected with the secondary winding 19 of primary winding 19* bythe conductors b b. The short circuit for primary winding 19 isestablished from post 13 through'conductor 30 (shown diagrammatically inFig. 7 as wire 30 leading to post 31") to plate 30", thence by wire 3O,through a hole in disk 15, to post 31*, thence from contact 31 on saidpost to contact 32 on spring 38,'carried by arm 34:",

thence by base 24 spring 25 contact 26, shaft 3 the metal of thearmature, winding 3 ,=conduct0r 5, 5 9, 19, 11, 12 and M back to post13. I

' A separate condensertfl may also be used to destroy the sparks atcontacts 31, 32". Said condenser is shown connected by wire 41 with post21 and by wire s2 with post 13. The condenser circuit around contacts 3132 is as follows :'from post 21*, through 41 40, 42 13, 30, (being 30 inFi 7), 30 30 ,31 31a, 32 se 34 35 base 24 ,'plate 23 and contact 22 post21.

With the arrangements described in con motion with the two transformersA and B with reference to Fig. 7 when the arm 33 is in the positionshown, the short circuit at the left for transformer A will be closed atcontacts 31, 32, and when said arm releases rock arm 34 said shortcircuit will be broken and a discharge will occur in the primary 19 halfrevolution of arm 33 arm 34 willbe :operated to close the correspondingshort circuit at 31, 32 of the primary of the transformer B, and whensaid short circuit is broken by arm 33 next releasing arm 34 thedischarge of the primary current from the armature will be through theprimary transformer winding 19 for plugs a a and so on, each time arm 33causes the make and break in one of the short circuits the discharge ofprimary current in the primary of the corresponding transformer willoccur, there thus being a discharge in one of the primaries during eachhalf revolution of the armature whereby current is furnished for fourengine cylinders during two complete revolutions of the engine drivingshaft. It will be understood that the mag-- neto may be driven by theengine .main shaft in any desired ratio of rotation according to thenumber of engine'cylinders, but by the arrangements shown the magneto.armature may be connected direct to the engine driving shaft as stated,and the two transformers will supply current for the four plugs at thetimes required in the manner described. To advance or retard the time ofsparking, disk 15 may be operated by an extension 45-5 actuated in anywellknown manner. The arrangement of the transformers shown is such thatthe current will fiow through them; always in the same direction therebyeliminating hysteresis.

- The condensers may be'supported uponframe 1 in any suitable manner, aswithin a cap or housing 46 secured thereon as by curedin insulation 4L8,48 fitted upon cap 46, insulation 49 being interposed between contacts22, 22 and 30 and the frame 1, the condensers being connected by wiresll and 41"", with the corresponding posts 21,- 21;

any suitable manner.

Having now described my invention what T clairnis:-;

' 1. lmiition devices comprising an armature, 'atransformer, a-circuitfrom-the armature to thetransformer, and devices controlled by thearmature to make and break said circuit during rotation of the armature,a short circuit for the transformer circuit and make and break devicesfor the short' circuit arranged to be broken before the break in thetransformer circuit."

2. Ignition devices comprising an armature, a transformer acircuit fromthe armathe opposite terminals of the condensers being connected bywires 42, 4:2 with post 13in for plugswz, a, and then during then'extscrews 47, and posts 13, 21 and 21*, are se-.

ture "to the transformer and devices controlled by the armature to makeand break said circuit during rotation of the armature, a short circuitfor the transformer circuit, and -make and break devices-for the shortcircuitarranged to be broken after the peak of the wave in thetransformer-circuit has been passed and before the break. in the'transformer circuit.

3. Ignition devices comprising an armature, a transformer, a circuitfrom the armature to the transformer, and devices controlled by thearmature to make and break said circuit during rotation of the armature,

a short circuit for the transformer circuit, and make and break devicesfor the short circuit arranged to be closed during the rise of thecurrent in the armature and to be broken after the peak of the Wave inthe transformer circuit has been passed and before the break in thetransformer circuit,

' and a condenser bridged across the make and break devices of the shortcircuit.

4. Ignition devices comprising an armature, anon-vibratory transformercircuit thereforjfrom the armature, a plurality of spark'plugs in thecircuit of the secondary of the transformer, a short circuit for thetransformer circuit, ,means to make and break the transformer circuit byand duringrotation of the armature, and means to make and break theshort circuit arranged to break'the short circuit While the transformercircuit is'closed. 1 i

5. Electric ignition devices comprlslng an armature, a pluralityoftransformers, sepaers to-the armature, short circuits for thetransformer circuits, and means located on opposite sides of the axis ofthe armature for making and breaking the corresponding short circuitwhen the armature is in corresponding. positions of rotation.

. -7.. Electric ignition devices comprising an armature,'a. pluralityoftransformers, separate circuits from the respective transformers to thearmature, short circuits for the transformer circuits, meanslocate'd onopposite sides of ,the axis of the armature for making and breaking thecorresponding short circuit when the armature is in correspondingposit-ions of rotation, and condensers bridged across the 'make andbreak 7 devices of said short circuits.

8. Ignition devices comprising an armaturc, a plurality of transformershaving corlea responding terminals connected to the same saidtransformers successively and sepa-.

rately during'a complete revolution of the armature, separate shortcircuits for said transformers, and means to make and break said shortcircuits successively and separately during a complete rotation of thearmature before the breaks in the primary circuits. i Ignition devicescomprising an armature, a plurality of transformers havingcorrespondingterminals connected to the same terminal of the armature, a rotarycontact in circuit with the oppositeterminal of the armature, contactsto successively en- .gage the armature contact in difl'erentpositions ofits rotation, said contacts being respectively connected withcorresponding terminals of said transformers opposite the first namedterminals, said rotary contact being arranged to make engagement With'the second named contacts successively whereby current will bedischarged through said transformers successively and separately duringa complete revolution of the armature,separate short circuits for saidtransformers, means,,to make and break said short-circuits successivelyand separately during a complete rotation of the armature before thebreaks in the primary circuits, and condensers bridged across the makeand break devices of said short circuits. Y 10. The combination of amagneto armature, a contact operated by and in circuit therewith, asecond contact for engagement by the first named contact, a transformerhaving one terminal connected with the second named contact and havingits other terminal permanently connected with thearmature, a shortcircuit for saidtransformer circuit, operated by the armature,

and means for breaking said short circuit while the transformer circuitis closed through said contacts.

11. The combination ofa magneto armature, a contact operated by and incircuit therewith, a second contact for engagement by the first namedcontact, a transformer in a circuit having one terminal connected withthesecond named contact and having its other terminal permanentlyconnectedwith the armature, ashort circuit for said transformer circuithaving make and breakcont acts, operated bythe. armature, and meansoperated by the armature to control said make and break contactsarranged to close and break the short circuit at said contacts while thetransformer circuit is closed through the first named contacts.

12. The combination of a magneto armature, a contact operated by and incircuit therewith, a second contact for en agement by the first namedcontact, a trans ormer inv a circuit having one terminal connected withthe second named contact and having its other terminal connected withthe armature, a short circuit for said transformer circuit having makeand break contacts, operated by the armature, means operated by thearmatureto control said make and break contacts arranged to break theshort circuit at said contacts while the transformer circuit is closedthrough the first named contacts, and a condenser bridged across saidmake and break contacts.

. 18. The combination of a magneto armature, a contact operated by andin circuit therewith, a second contact for'en agement by the first namedcontact, a trans ormer in the circuit of said contacts, an arm operatedby said armature, a rock arm in circuit with said second contact, saidrock arm having a third contact, a fourth contact for engagement withthe third contact, a short circuit for the transformer circuitcontrolled by the third and fourth contacts, and an insulator supportingthe second, third and fourth contacts and adjustable around the axis ofthe armature.

14. The combination of a magneto armature, a contact operated by and incircuit therewith, a second contact for engagement by the first namedcontact, an arm operated by said armature, a rock arm in circuit withsaid second contact, said rock arm having a third contact, a fourthcontact for engagement with the third contact, and an insulatorsupporting the second, third and fourth contacts, said insulator havingplates respectively connected with the second and fourth named contacts,said insulation being movably supported and contacts engaging thecontacts of said insulator.

15. The combination of a magneto armature, a contact operated by and incircuit therewith, contacts on opposite sides of the axis of thearmature, insulation carrying said contacts, and adjustable around theaxis of the armature, movable contacts respectively in circuit with therespective second named contacts, an arm operated by said armature tosuccessively operate the movable contacts, and contacts respectively onopposite sides of the axis of the armature for engagement with therespective movable contacts, spaced contacts connected respectively withsaid last named contacts and carried by said insulation, a contactcarried by said insulation common to all said contacts, and a spring toengage said common contact.

16. The combination of a magneto arma-- ture, a contact operated by andin circuit therewith, contacts on opposite sides of the axis of thearmature, insulation carrying said contacts, movable contactsrespectively in circuit with the respective second named contacts, anarm operated by said armature to successively operate the movablecontact-s, fourth contacts respectively on opposite sides of the axis ofthe armature for engagement with the respective movable contacts, aninsulating disk carrying the contacts on opposite sides of the armatureshaft, said disk'having contact plates one of which is connected withthe fourth contacts, other of which plates are connected with themovable contacts respectively on opposite sides of the armature axis,and separate springs engaging said plates.

Signed at New York city, in the county of New York, and State of NewYork, this 22nd day of March, A. D. 1909.

THEODORE HUBERT.

Witnesses RALPH N. RAPHAEL, T. F. BOURNE.

